Abstract: A light source device according to an embodiment of the present disclosure includes: a first light source section that emits light in a first wavelength region; a wavelength conversion section that is disposed on an optical path of the light in the first wavelength region, and is excited by the light in the first wavelength region emitted from the first light source section to emit light in a second wavelength region different from the first wavelength region; a polarization separation element that is disposed between the first light source section and the wavelength conversion section, and separates incident light on the basis of polarization; and a color separation element that is disposed between the first light source section and the polarization separation element, and separates incident light on the basis of a wavelength region.

Abstract: A light source apparatus (1) according to the present disclosure includes a wavelength conversion device (10) that includes two or more wavelength conversion units (11-13) serially coupled in a first direction. The wavelength conversion device (10) has a configuration in which the two or more wavelength conversion units (11-13) generate respective converted lights having wavelengths different from each other to generate two or more converted lights. The two or more wavelength conversion units (11-13) each include a first end surface and a second end surface that are formed in a direction parallel to the first direction, and a light entering surface (43) that is formed in a second direction different from the first direction and which an excitation light for generating the converted light enters.

Abstract: A display apparatus of the present disclosure includes: a first optical system that generates illumination light whose light emitting luminance is variable; a light modulation unit that transmits the illumination light from the first optical system and whose transmissivity is variable; a second optical system that includes a light modulation device and optically modulates the illumination light from the first optical system by using a pulse width modulation technology, the illumination light having passed through the light modulation unit; and a control unit that controls the light emitting luminance of the illumination light from the first optical system and the transmissivity of the light modulation unit in any combination.

Abstract: A light source device includes a wavelength conversion element including a substrate and a wavelength conversion layer that is retained by the substrate. The wavelength conversion layer absorbs a portion of incident first color light to output second color light in a wavelength range different from the first color light while outputting an unabsorbed portion of the first color light, in which a portion of the substrate and the wavelength conversion layer has a function of diffusing the first color light.

Abstract: A projector of the present disclosure includes a light source section, a projection optical system, a mirror array, and a tilt angle controller. The light source section emits light as source of illumination light. The projection optical system projects an image onto a projection surface using the illumination light. The mirror array device includes a plurality of mirrors. The mirror array varies a tilt angle of each of the mirrors to deflect the illumination light toward the projection optical system, and generates the image from the illumination light. The tilt angle controller performs switching control on the tilt angle of each of the mirrors in a case of deflecting the entering light toward the projection optical system. The switching control is control of switching the tilt angle between a reference tilt angle and one or a plurality of non-reference tilt angles different from the reference tilt angle.

Abstract: A light source apparatus (1) according to the present disclosure includes a wavelength conversion device (10) that includes two or more wavelength conversion units (11-13) serially coupled in a first direction. The wavelength conversion device (10) has a configuration in which the two or more wavelength conversion units (11-13) generate respective converted lights having wavelengths different from each other to generate two or more converted lights. The two or more wavelength conversion units (11-13) each include a first end surface and a second end surface that are formed in a direction parallel to the first direction, and a light entering surface (43) that is formed in a second direction different from the first direction and which an excitation light for generating the converted light enters.

Abstract: A light source device includes a wavelength conversion element including a substrate; and a wavelength conversion layer that is retained by the substrate, and absorbs a portion of incident first color light to output second color light in a wavelength range different from the first color light while outputting an unabsorbed portion of the first color light, in which a portion of the substrate and the wavelength conversion layer has a function of diffusing the first color light.

Abstract: A projector of the present disclosure includes a light source section, a projection optical system, a mirror array, and a tilt angle controller. The light source section emits light as source of illumination light. The projection optical system projects an image onto a projection surface using the illumination light. The mirror array device includes a plurality of mirrors. The mirror array varies a tilt angle of each of the mirrors to deflect the illumination light toward the projection optical system, and generates the image from the illumination light. The tilt angle controller performs switching control on the tilt angle of each of the mirrors in a case of deflecting the entering light toward the projection optical system. The switching control is control of switching the tilt angle between a reference tilt angle and one or a plurality of non-reference tilt angles different from the reference tilt angle.

Abstract: The invention aims to provide small-sized and highly-reliable light converter and light source unit, as well as a projector each of which makes it possible to cool down heat generated in a fluorescent body in a motorless manner. A light converter of the disclosure includes a fluorescent body that is excited by excitation light; a first light-collecting lens that has a lens surface to which the fluorescent body is bonded, and causes the excitation light to enter the fluorescent body; and a heat-dissipating member to which the lens surface is adhered at least around a region to which the fluorescent body is bonded.

Abstract: There is provided a light source device including a first light source that emits light in a first wavelength region, a second light source that emits light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and emits fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another.

Abstract: A light-emitting device of an embodiment of the present disclosure includes a first base, a second base that is disposed to face the first base, and a phosphor layer that is provided to be filled with a plurality of phosphor particles between the first base and the second base.

Abstract: An object of the present invention is to provide [(1R,5S,6S)-6-(aminomethyl)-3-ethylbicyclo[3.2.0]hept-3-en-6-yl]acetic acid monobenzenesulfonate as a stabilized pharmaceutical solid preparation, and also to provide a method for preparing the stabilized pharmaceutical solid preparation. The object can be attained by a pharmaceutical solid preparation comprising [(1R,5S,6S)-6-(aminomethyl)-3-ethylbicyclo[3.2.0]hept-3-en-6-yl]acetic acid monobenzenesulfonate which is compound represented by the following formula (I) in combination with (i) one or two or more components selected from the group consisting of D-mannitol, lactose, corn starch, and crystalline cellulose, (ii) carmellose calcium, and (iii) colorants.

Abstract: An object of the present invention is to provide [(1R,5S,6S)-6-(aminomethyl)-3-ethylbicyclo[3.2.0]hept-3-en-6-yl]acetic acid monobenzenesulfonate as a stabilized pharmaceutical solid preparation, and also to provide a method for preparing the stabilized pharmaceutical solid preparation. The object can be attained by a pharmaceutical solid preparation comprising [(1R,5S,6S)-6-(aminomethyl)-3-ethylbicyclo[3.2.0]hept-3-en-6-yl]acetic acid monobenzenesulfonate which is a compound represented by the following formula (I) in combination with (i) one or two or more excipients, (ii) one or two or more disintegrants, and (iii) a specific antioxidant.

Abstract: There is provided a light source device including a first light source configured to emit light in a first wavelength region, a second light source configured to emit light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and configured to emit fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another.

Abstract: There is provided a light source device including a first light source configured to emit light in a first wavelength region, a second light source configured to emit light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and configured to emit fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another.

Abstract: Provided is a light source device including: at least one light source unit (110) that emits substantially parallel light in a predetermined wavelength band; and a light guide unit (120, 130) that guides the light from the light source unit (110) toward a light collection spot (143). The light from the light source unit (110) is sequentially reflected by a concave mirror (121) and a convex mirror (122) and is guided toward the light collection spot (143) in the light guide unit (120, 130).

Abstract: The invention aims to provide small-sized and highly-reliable light converter and light source unit, as well as a projector each of which makes it possible to cool down heat generated in a fluorescent body in a motorless manner. A light converter of the disclosure includes a fluorescent body that is excited by excitation light; a first light-collecting lens that has a lens surface to which the fluorescent body is bonded, and causes the excitation light to enter the fluorescent body; and a heat-dissipating member to which the lens surface is adhered at least around a region to which the fluorescent body is bonded.

Abstract: The invention aims to provide small-sized and highly-reliable light converter and light source unit, as well as a projector each of which makes it possible to cool down heat generated in a fluorescent body in a motorless manner. A light converter of the disclosure includes: a fluorescent body (12) that is excited by excitation light; a first light-collecting lens (11A) that has a lens surface to which the fluorescent body is bonded, and causes the excitation light to enter the fluorescent body; and a heat-dissipating member (14) to which the lens surface is adhered at least around a region to which the fluorescent body is bonded.

Abstract: A light-emitting device (10A) of an embodiment of the present disclosure includes a first base (11), a second base (13) that is disposed to face the first base, and a phosphor layer (15) that is provided to be filled with a plurality of phosphor particles (151) between the first base and the second base.

Abstract: This light source device includes: a wavelength conversion element that absorbs a portion of an incident first color beam and outputs a second color beam in a wavelength region that is different from a wavelength region of the first color beam, and outputs an unabsorbed portion of the first color beam; a first optical system that outputs the first color beam toward the wavelength conversion element, while concentrating the first color beam, and sets a focal position of the first color beam to a position shifted from a position on the wavelength conversion element; and a second optical system that is disposed on light output side of the wavelength conversion element, and includes an optical member that concentrates light on a different position depending on a wavelength.